changing redirect url's

app.py

@@ -1,5 +1,6 @@
 from fastapi import FastAPI, Request
 from fastapi.responses import RedirectResponse, HTMLResponse
+from google.oauth2.credentials import Credentials
 from fastapi.staticfiles import StaticFiles
 from google_manager.constants import SCOPES
 from pages.load_page import load_page
@@ -24,9 +25,18 @@ async def home(request: Request):
     html_content = load_page("./pages/auth_page.html")
     # print("request session")
     # print(request.session)
-    creds = request.session.get("credentials", None)
-    # print("state")
-    # print(creds)
+    # creds = request.session.get("credentials", None)
+    creds = request.session.get("credentials", {})
+
+    if creds:
+        try:
+            creds = Credentials.from_authorized_user_info(info=creds)
+
+        except Exception as e:
+            raise Exception(
+                f"Invalid credentials in session with the following error{e}"
+            )
+
     if not creds or not creds.valid:
         return HTMLResponse(content=html_content, status_code=200)
     else:
@@ -40,7 +50,15 @@ async def integrate_google(request: Request):
     flow = google_auth_oauthlib.flow.Flow.from_client_secrets_file(
         "credentials.json", scopes=SCOPES
     )
-    flow.redirect_uri = "https://gpt-summary-u8pr.onrender.com/auth_callback"
+    # flow.redirect_uri = "https://gpt-summary-u8pr.onrender.com/auth_callback"
+    # flow.redirect_uri = "http://127.0.0.1:8000/auth_callback"
+    flow.redirect_uri = (
+        request.url.scheme
+        + "://"
+        + request.url.hostname
+        + (":" + str(request.url.port) if request.url.port else "")
+        + app.url_path_for("auth_callback")
+    )
     authorization_url, state = flow.authorization_url(
         access_type="offline",
         include_granted_scopes="true",
@@ -56,7 +74,26 @@ async def auth_callback(request: Request):
     flow = google_auth_oauthlib.flow.Flow.from_client_secrets_file(
         "credentials.json", scopes=SCOPES, state=state
     )
-    flow.redirect_uri = "https://gpt-summary-u8pr.onrender.com/auth_callback"
+    print(request.url.hostname)
+    # if request.url.hostname == "0.0.0.0":
+    #     flow.redirect_uri = "https://gpt-summary-u8pr.onrender.com/auth_callback"
+    # else:
+    #     flow.redirect_uri = (
+    #         request.url.scheme
+    #         + "://"
+    #         + request.url.hostname
+    #         + (":" + str(request.url.port) if request.url.port else "")
+    #         + app.url_path_for("auth_callback")
+    #     )
+    # flow.redirect_uri = "https://gpt-summary-u8pr.onrender.com/auth_callback"
+    # flow.redirect_uri = "http://127.0.0.1:8000/auth_callback"
+    flow.redirect_uri = (
+        request.url.scheme
+        + "://"
+        + request.url.hostname
+        + (":" + str(request.url.port) if request.url.port else "")
+        + app.url_path_for("auth_callback")
+    )
 
     # Use the authorization server's response to fetch the OAuth 2.0 tokens.
     authorization_response = str(request.url)